Prague-born writer Franz Kafka wrote in German, and his stories, such as " The Metamorphosis " (1916), and posthumously published novels, including The Trial (1925), concern troubled individuals in a nightmarishly impersonal world. Jewish middle-class family of this major fiction writer of the 20th century spoke German. People consider his unique body of much incomplete writing, mainly published posthumously, among the most influential in European literature. His stories include "The Metamorphosis" (1912) and " In the Penal Colony " (1914), whereas his posthumous novels include The Trial (1925), The Castle (1926) and Amerika (1927).